N4XK Keller FK-1 STOL Prospector Private Oshkosh - Wittman Regional (OSH / KOSH), USA - Wisconsin Don Hewins - 30/07/2008
N4XK Keller FK-1 STOL Prospector Private Oshkosh - Wittman Regional (OSH / KOSH), USA - Wisconsin Dave Mangham - 28/07/1994
